
#include <iostream>

using namespace std;
class Circle{
private:double r;
public:
    Circle(double r):r(r){}
    double g=3.1415;
    void setR(double r){
    this->r=r;
}
    double getR(){
    return r;}
    double getS(){
    return r*r*g;}

   double getL(){

   return 2*r*g;}
    };

int main()
{Circle circle(5.0);
    cout << "Long " << circle.getL()<<endl;
    cout<<"area "<<circle.getS()<<endl;
    return 0;
}
